Sand-scoop



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stop-piece 14 with the upper section of the in a frame.

IUnirse Sra'rns PATENT Ormes.

NOAH Q. SPEER, OF PITTSBURG, PENNSYLVANIA.

SAN D-SCOOP.

SPECIFICATION forming part of Letters Patent No. 358,993, dated March 8, 1887.

Application filed May 20, lBG. Serial No. 202,730. (No modeLl .To all whom it may concern.-

Beit known that I, NOAH Q. SPEER, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Sand-Scoops; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a side elevation of apparatus embodying my invention. Figs. 2 and 3 are enlarged side views of parts.

Like symbols of reference indicate li ke parts in each.

My invention relates to an improvement in devices for transferring sand and like substances froni a pile and loading it upon cars or wagons.

In the drawings, 2 represents apile of sand, and 3 is the ear to which the sand is to be transferred. Extending above the sand-pile and car is a cable, 4, which constitutes the track on which the conveying-scoop 5 travels.

6 is a traveler,consistin g of wheels j ournaled It rests on the cable 4, and has a sheave or pulley block, 7, depending from it. The cable 4 is inclined at an angle to the horizon, so that at the point of discharge above the car 3 it is higher than at the point of collection 2. The end of a rope, 8, is attached to a hook on the sheave-block 7, and thence this rope extends down to and around a second sheave-block, 9, thence up over the pulley 7, and to a drum or windlass, 10, to which it is fastened. The bail 11 of the scoop is attached to the sheaveblock 9, and is pivotall y attached to the bottom of the scoop at b, alittle back of the center of gravity. Vhen the scoop is thus suspended by the rope 8, it is kept horizontal, and prevented from tilting forward by means of a brace-rod, 12, which extends from the top rear edge of the scoop to the bail, being pivotally attached to both. This brace-rod is made in two sections hinged together at c, and on the upper side of one of these sections there is fixed a stop-piece, 14, which extends over the hinge-joint and overlaps the other section. Hence while the brace-rod 12 may be bent back on its hinge, in the manner of a toggle or knee joint, the engagement of the brace-rod prevents it from being bent forward farther than is shown in Fig. 2, so that normally the scoop will be braced and held in a substantially horizontal direction.

The drum 10 has a beltvpulley, 15, fixed to its axis, whose belt 16 extends around the periphery of a continuously-driven beltpulley,

18 is a belt-tightening pulley' journaled at the end of a lever, 19, whose other end is pivoted to aframe at d, and 20 is a rod or chain extending from thelever 19 to an intermediate lever, 21, which is operated by a rope, 22. Vhen the pulley lSis not in engagement with the belt 16, the latter remains slack and transmits no motion from the wheel 17 to the drum 10; but if the rope 22 be pulled taut, to press the pulley 18 against the belt, the belt will be tightened, and will transmit power from the one pulley-wheel to the other in the usual way.

The operation is as follows: Suppose the parts to be in the position shown by full lines in Fig. 1. The workman seizes the handle 23, which proj ects from the back of the scoop, and pushes the front edge of the scoop into the sandpile, and immediately afterward the rope 22 is pulled, so as to tighten the belt 16 and to rotate the drum 10, which, winding up the rope 8, raises the scoop toward the sheave 7, and simultaneously draws it forward with the traveler 6 toward the car. This upward and forward motion through the sand pile has the effect of filling the scoop with sand. The upward motion is assisted by the upward inclination of the cable 4. As the scoop goes forward deeper into the sand and increases in weight it has a tendency to drag, which is counterbalanced by the inclined cable 4, lifting it as itprogresses. Vhen thescoop reaches a position directly over the car 3, the workman pulls a cord, 24, which is attached to an eye at the end of the piece 14. This bends the brace-rod 12 back on its joint e, and tilts the scoop forward so as to discharge its load, as shown by dotted lines in Fig. 1. The belttightener 1S being then thrown out of gear,the scoop may be drawn back for another load and the operation repeated, as just described.

In the following rst claim I use the terni scoop to describe a carrying-vessel open at one side, the sides and bottom of the vessel at ICO such opening being ol' sutcient sharpness to enter the material to be carried with as little resistance as possible.

I claiml. r:Phe combination of a scoop of the character described, a traveler mounted on a track, a rotary drum, and a rope extending from the drum over a pulley, 7, attached to the traveler, and thence around a pulley on the scoop to the pulley 7 substantially as and for the purposes described.

2. The combination of a scoop having abail and a brace-rod formed in two sections hinged together and to the scoop and bail, substantially as and for the purposes described.

3. The combination of a scoop having a bail, ajointed brace-rod connecting the scoop with the bail, and a stop-piece extending from one of the sections of the brace-rod and overlapping the other section, substantially as and for the purposes described.

4. The combination of a scoop having abail, ajointed brace-rod connecting the scoop with the bail, a stop-piece extending` from one of the sections of the brace-rod and overlapping the other section, and a cord attached to one of said brace-rod sections, substantially as and for the purposes described.

In testimony whereof Iliave hereunto set my hand this 7th day of May, A. D. 1886.

NOAH Q. SPEER. Vitnesses:

7.13. CoRWIN, THoMAs W'. BAKEWELL. 

